To Evaluate and Explain the Consequences of Abnormal Anal Sphincter Morphology Using the 3-Dimensional Endosonography

Table 1

Endoanal ultrasound findings and the number of cases.

Endoanal 3D ultrasound findings		%
IAS defect	12	21.4
EAS defect	15	26.8
Combined IAS and EAS defects	8	14.2
Thick IAS	4	7.1
Thin IAS	4	7.1
Thin EAS	3	5.3
Puborectalis muscle injury	2	3.5
Transsphincteric fistula	3	5.3
Normal ultrasound	5	8.9
Total	56	100.0